Oral brush head



FIG. 1 is an isometric view of an oral brush head showing the design hereof;

FIG. 2 is a front view hereof;

FIG. 3 is a rear view hereof;

FIG. 4 is an inverted left side view hereof;

FIG. 5 is a right side view hereof;

FIG. 6 is a top plan view hereof; and,

FIG. 7 is a bottom plan view hereof.

The portions of the oral brush head shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an oral brush head, as shown and described. 